baber/WOPTO huggingface dataset:
Patent KR-20040060015-A (KR)
Inventor: CHUNG SEUNG HO
IPC: F24C1/08
Filed: 2002-12-30
Abstract: PURPOSE: A heater is provided to heat the interior room with a heat source generated by the combustion of fuel and to reduce the offensive odor and radiate the heat again by burning the unburned gas again. CONSTITUTION: A heater for using gas or oil as fuel and heating the interior room by using heat generated from a combustor(10) for burning the fuel is composed of a collecting unit(20) mounted near the combustor to collect the unburned gas and waste heat thrown away upward from the heat generated at the combustor; an intermediate medium(30) for re-combustion installed adjacently to the collecting unit; a heat radiating tube(40) disposed to the position connected with the intermediate medium; and an absorption member(50) installed near a discharge unit(42) of the heat radiating tube. The combustor is formed in an arc shape and a heat radiating range is widened to diffuse the heat in the radial direction by enlarging the radiation angle of the heat.
Patent KR-20040060195-A (KR)
Title: Method for manufacturing conducting layer pattern of sub-micro critical dimension on the semiconductor device
Inventor: MYUNG JEONG HAK
IPC: H01L21/336
Filed: 2002-12-30
Abstract: PURPOSE: A method for fabricating a conductive pattern having ultra-narrow line width of a semiconductor device is provided to obtain an etch margin of a conductive layer and overcome a limit of a photolithography process by fabricating easily an insulating layer pattern having the ultra-narrow line width without reducing thickness of a photoresist pattern. CONSTITUTION: A conductive layer(106) is deposited on a semiconductor substrate(100). The first insulating layer is deposited on the conductive layer. The first photoresist pattern is formed on the first insulating layer in order to define a region between conductive patterns. The first insulating layer is patterned and the photoresist first pattern is removed. The second insulating layer is deposited thereon. The first insulating layer pattern is separated by planarizing the second insulating layer. A photoresist is coated on a groove between the second insulating layers. The second photoresist pattern(114) is formed by hardening the photoresist. The first and the second insulating layer are removed except for the second insulating layer under the photoresist. The conductive layer is patterned according to the second photoresist pattern and the second insulating layer. The second photoresist pattern and the second insulating layer are removed therefrom.
Patent KR-20040061130-A (KR)
Title: Thin film deposition system and method
Inventor: KIM JI A
IPC: H01L21/205
Filed: 2002-12-30
Abstract: PURPOSE: An apparatus for depositing a thin film is provided to improve a reaction rate between reaction gases in a process chamber by including a plasma generating apparatus or a high-temperature heat treatment chamber and activating a part of the reaction gas previously, and to maximize process efficiency by improving the surface characteristic of a deposited thin film. CONSTITUTION: An inner space is defined in a chamber(301) by a predetermined housing. At least one gas induction hole is formed in a side of the housing. A chuck(302) on which a semiconductor substrate(303) is to be placed is installed in the inner space of the chamber. A heat treatment chamber performs a high-temperature treatment process and activating the gas supplied to the inside of the chamber, connected to the chamber by a predetermined gas interconnection pipe.
Patent KR-20040061774-A (KR)
Title: Deterioration daiagnosis measuring apparatus for lightning arrester according by using leakage current wave height analysis
Inventor: KIL GYEONG SEOK
IPC: H01T4/00
Filed: 2002-12-31
Abstract: PURPOSE: An apparatus is provided to reduce costs by measuring the leakage current for third harmonic waves and leakage current for resistance through the use of programs. CONSTITUTION: An apparatus comprises a current transformer(2) for measuring the leakage current of a lightning arrester(1); a signal processor(3) for processing the leakage current signal detected by the current transformer; a voltage distributor(7) for distributing and outputting voltages; an atmospheric temperature sensor(8) for detecting an atmospheric temperature; a data acquisition unit(9) for receiving the amplified signal of the leakage current amplified and output from a differential amplifying unit(13) of the signal processor, receiving the voltage output from the voltage distributor, receiving the atmospheric temperature signal detected by the atmospheric temperature sensor, and converting the received signals into digital signals; and a personal computer(10) for receiving the digitalized amplified leakage current, phase of power voltage and atmospheric temperature data output from the data acquisition unit, and judging a degradation of a lightning arrester by performing an arithmetic operation on the received data in accordance with an algorithm.
Patent KR-20040061917-A (KR)
Title: Catalyst-compositions comprising metallocene compounds having bulky cycloalkyl-substituted cyclopentadienyl ligand, and process for olefin polymerization using the same
Inventor: HONG SA MUN
IPC: C08F4/60
Filed: 2002-12-31
Abstract: PURPOSE: An asymmetric noncrosslinking metallocene catalyst composition containing a cyclopentadienyl ligand substituted with a cycloalkyl group and a polymerization method of a polyolefin using the composition are provided, to obtain a catalyst which has improved activity and is suitable for the polymerization of polyolefins having a low density and a high molecular weight. CONSTITUTION: The composition comprises a metallocene compound for polymerization of olefins represented by (R1CpR2)(Cp'R3)MX2 and an aluminoxane represented by the formula 2 or 3 which are supported in a porous carrier, wherein Cp is a cyclopentadienyl group; Cp' is a radical having a cyclopentadienyl nucleus and is a cyclopentadienyl, indenyl or fluorenyl radical; R1 is a cyclohydrocarbyl radical of C3-C11; R2 and R3 are independently a substituent substituted to Cp and Cp', are identical or different each other, and are H, phosphine, an amino group, or an alkyl, alkoxy, alkylamino, dialkylamino, alkoxyalkyl, aryl, aryloxyalkyl, alkenyl, alkylaryl or arylalkyl group of C1-C20; M is a transition metal of group 4B, 5B or 6B; X's are identical or different each other and are a halogen atom, an alkyl, aryl, alkenyl, alkylaryl, arylalkyl, alkoxy or aryloxy group of C1-C20; (R')'s are independently a hydrocarbon radical of C1-C10; x is an integer or 1-50; and y is an integer of 3-50.
Patent KR-20040062185-A (KR)
Inventor: LEE DONG HUN
IPC: G02F1/1345
Filed: 2002-12-31
Abstract: PURPOSE: A test pad of an array panel of an LCD(liquid crystal display) and a method for fabricating the test pad are provided to test the LCD irrespective of a panel size or pad pitch size. CONSTITUTION: A test pad of an array panel of an LCD includes gate routing lines and data routing lines(501), gate pads and data pads(502), and probe pads(503). The gate routing lines and data routing lines are formed on a thin film transistor array substrate of the LCD. Each gate pad is connected to one end of each gate routing line, and each data pad is connected to one end of each data routing line. The probe pads are connected to the other ends of the gate pads and data pads. The probe pads have a specific pad pitch.
Patent KR-20020019972-A (KR)
Title: 자동 평가 방법 및 자동 평가 시스템 및 자동 평가프로그램을 기억한 기억 매체
IPC: G06F11/36
Filed: 2001-06-14
Abstract: 시뮬레이터에 시뮬레이션 결과가 확정되어 화면을 갱신하는 일정한 사이클을 감시시키고, 이것을 자동 평가 장치에 통지하는 체계(scheme)를 구축함으로써, 신뢰성이 높은 자동 평가를 실현한다.  임의의 입력 이벤트에 대한 시뮬레이션 결과로서, 출력 화면을 참조함으로써, 타깃 시스템 상에서 동작하는 프로그램을 자동 평가하는 자동 평가 시스템에 있어서, 시뮬레이션 장치(30)가 프로그램에 의한 동작의 시뮬레이션을 행함과 함께, 그 결과가 반영되는 출력 화면의 데이터 갱신이 확정되는 타이밍을 감시하고, 자동 평가 장치(11)가 시뮬레이션 장치(30)로부터 출력 화면의 데이터 갱신이 확정되는 타이밍을 얻어, 그 타이밍에 따라 상기 출력 화면을 참조하고, 이 참조 결과와 사전에 작성된 기준 데이터를 비교함으로써 자동 평가를 행한다.
Patent KR-20020027570-A (KR)
Title: Network switch using network processor and methods
IPC: G06F15/16
Filed: 2000-08-24
Abstract: A network switch apparatus, components for such an apparatus, and methods of operating such an apparatus in which data flow handling and flexibility is enhanced by the cooperation among a plurality of interface processors and a suite of peripheral elements formed on a semiconductor substrate. The interface processors and peripherals together form a network processor capable of cooperating with other elements including an optional switching fabric device in executing instructions directing the flow of data in a network.
Patent KR-20020043635-A (KR)
Title: 다운로드가능한 음성 명령 세트를 구비하는 음성 제어형원격제어기
IPC: H04N5/445
Filed: 2001-08-10
Abstract: 본 발명은 전자 디바이스를 제어하기 위한 원격제어기로서, 발화된 명령 데이터를 검출하기 위한 마이크로폰과; 상기 마이크로폰에 의해 검출된 발화된 명령을 인식하기 위하여 템플릿 데이터를 사용하여 음성 인식 알고리즘을 실행하기 위한 및 상기 전자 디바이스를 제어하기 위한 프로세서와; 발화된 명령을 인식하도록 원격제어기를 인에블하기 위하여 외부 저장장치 또는 네트워크로부터 템플릿 데이터를 수신하는 수신기와; 상기 선택되고 수신된 템플릿 데이터를 저장하기 위한 메모리를 포함한다.
Patent KR-20030022764-A (KR)
Title: Method for transfer of molecular substances with prokaryotic nucleic acid-binding proteins
IPC: C07K19/00
Filed: 2000-11-03
Abstract: The invention relates to a method for the transfer of molecular substances, for example proteins or nucleic acids in cells, in the case of using DNA combined with a possible gene expression. A prokaryotic nucleic acid-binding protein is used for the transfer, which is preferably obtained from a thermostable organism. Where the substance to be transferred is a nucleic acid, the protein forms a reversible complex with the nucleic acid. The prokaryotic protein condenses and compacts the nucleic acids. Said nucleic acids can be taken up in the target cells after suitable incubation.
Patent KR-20020056956-A (KR)
Title: Integrated circuit package
IPC: H05K3/34
Filed: 2000-12-04
Abstract: An integrated circuit package is provided that includes a multi-layer organic substrate. The substrate has conductive vias provided between isolated conductive layers. The vias are formed using a laser to cut through a dielectric layer separating the conductive layers. External interconnects in the form of T-shaped pins are soldered to the substrate of the integrated circuit package. An integrated circuit can be attached to the substrate using a flip-chip technique.
Patent KR-20030093903-A (KR)
IPC: H04M1/27
Filed: 2000-12-19
Abstract: 전화기 (10) 와 사용하기에 적합한 전자 전화번호부 (40) 내의 해당 항목에 전화통화를 정확히 매치시키는 시스템 (36, 38).     시스템 (36, 38) 은 전화통화를 식별하여 전화번호를 제공하는 제 1 메커니즘 (38) 을 포함한다.     제 2 메커니즘 (38) 은 전화기와 관련된 홈 지역번호를 결정한다.   제 3 메커니즘 (38) 은 홈 지역번호 및 전화번호를 사용하여, 전자 전화번호부 (40) 내의 항목들이 지역번호를 포함하든 안하든 전자 전화번호부 (40) 내의 해당 항목에 전화통화를 정확히 매치시킨다.     특정 실시예에서, 제 1 메커니즘 (38) 은 전화통화를 착신 호 또는 발신 호로서 식별하는 메커니즘 (38) 을 포함한다.     발신자 전화번호통지 시스템 (38) 은 착신 호들을 식별하여 전화번호를 제공한다.     또 다른 메커니즘 (38) 은 다이얼된 송신 번호를 저장하여 송신 번호를 전화번호로서 제공한다.     무선 전화기 (10) 의 지역번호는 컴퓨터 (36) 에 저장되어 있다.      제 3 메카니즘 (38) 은, 전화번호의 길이가 7 자리이면, 지역번호에 기초한 자릿수를 전화번호의 앞쪽에 첨부하여 조정된 번호를 제공한다.     제 3 메커니즘 (38) 은 지역번호에 기초한 자릿수를 7 자리의 전화번호부 항목들에 선첨부하여 조정된 항목들을 제공함으로써, 7 자리만 갖는 전자 전화번호부 (40) 내의 항목들을 조정하는 또 다른 메커니즘 (38) 을 포함한다.     또 다른 메커니즘 (38) 은 조정된 항목들을 포함하는 전자 전화번호부 (36) 내의 항목과 조정된 번호를 비교하여, 조정된 번호와 전자 전화번호부 (40) 내의 한 항목과 매치되면 제 3 메커니즘 (38) 의 출력으로서매치신호를 제공한다.
Patent KR-20030007712-A (KR)
IPC: C03C14/00
Filed: 2002-03-26
Abstract: 본 발명은 MgAl 2 O 4 을 포함하는 세라믹 분말; 산화 규소를 SiO 2 환산으로 30∼60몰% 및 산화 마그네슘을 MgO환산으로 20∼55몰% 포함하는 유리 분말;을 혼합하여 이루어지는 절연체 세라믹 조성물에 관한 것으로서, 세라믹 분말은 Mg 2 SiO 4 및 TiO 2 를 더 포함한다. 이 절연체 세라믹 조성물은 1000℃ 이하에서 소성할 수 있고, Ag나 Cu와의 동시 소결이 가능하다. 이 절연체 세라믹 조성물을 소결함으로써 얻어지는 절연체 세라믹은 Q값이 높고, 고주파 영역에서 이용되는 세라믹 다층 기판에 적합하다.
Patent KR-20030022167-A (KR)
Title: Apparatus for machining, especially cutting tubular or round section bodies
IPC: B23D47/02
Filed: 2002-05-16
Abstract: The invention relates to an apparatus for machining, especially cutting tubular or round section bodies (1), said apparatus comprising a gripping mechanism (2), which is adapted to be braced on said machinable body (1) rotatably around the same and which gripping mechanism (2) is provided with a machining unit (3) fitted with adjusting means (4) for moving said machining unit (3) relative to the gripping mechanism (2) towards or away from the machinable body (1), and which gripping mechanism (2) includes a frame section (5) and first and second arms (6, 7) extending therefrom, the gripping mechanism (2) being adapted to brace against the machinable body (1) by means of bracing elements (14, 15, 16) mounted on the frame section (5) and the arms (6, 7). The arms (6, 7) are at one end articulated to the frame section (5) of the gripping mechanism (2) and the bracing elements (15, 16) included in the arms (6, 7) are mounted on the free ends of the arms. The frame section (5) of the gripping mechanism (2) is rotatably and axially immovably fitted with a threaded shaft (20), having at its first end a right hand thread with a first nut (21) and at its second end a left hand thread with a second nut (22), and said threaded shaft (20) being provided with an element (23) for rotating the threaded shaft (20). The first arm (6) and the first nut (21) are articulated to each other by means of a first bracket (24) and the second arm (7) and the second nut (22) are articulated to each other by means of a second bracket (25).
Patent KR-20030074121-A (KR)
Title: 인쇄 장치, 인쇄 장치의 메뉴 추가 방법, 인쇄 시스템 및기억 매체
IPC: G06F3/0482
Filed: 2003-01-06
Abstract: 메뉴 표시에 의해 선택한 요소 화상을 배치하여 인쇄 화상을 작성하는 인쇄 장치는 상기 메뉴 표시의 메뉴 항목으로서 추가 가능한 추가 메뉴 항목의 정보와 그 추가 메뉴 항목의 하위로 분류되는 요소 화상의 정보를 갖는 추가 메뉴 데이터를 소정의 통신 상대로부터 수신하는 수신 장치, 상기 추가 메뉴 데이터를 기억하는 추가 메뉴 기억 장치, 및 상기 추가 메뉴 데이터에 따라 상기 추가 메뉴 항목 및 그 하위의 요소 화상을 상기 메뉴에 조합하는 메뉴 조합 장치를 구비하고 있다.
Patent KR-20040070389-A (KR)
Inventor: JIN SANG JOON
IPC: B65G65/00
Filed: 2003-02-03
Abstract: PURPOSE: An apparatus for unloading a poultry is provided to simplify the structure thereof and improve the working efficiency. CONSTITUTION: In an apparatus for automatically feeding a poultry, which drops the poultry in a poultry cage(5) to a hopper conveyor(9) by rotating the poultry cage in a prescribed angle, an apparatus for unloading the poultry comprises a first rotating arm(20) rotatably installed to a driving shaft of a driving motor(10) installed to a side of a frame(2), a second rotating arm(30) coupled to the other side of the first rotating arm with a hinge; and a gripping part(40) having a gripping member(41) installed on the other end of the second rotating arm.
Patent KR-20040070705-A (KR)
Inventor: BAEK JEONG HEON
IPC: H01L21/027
Filed: 2003-02-04
Abstract: PURPOSE: A method for patterning and etching a BARC(bottom anti-reflective coating) in a semiconductor fabricating process is provided to compensate for the thickness of a photoresist layer consumed in an etch process for etching the BARC, by depositing a coating material on a BARC material, by melting the BARC material in developer and by extending a photoresist layer pattern to the BARC. CONSTITUTION: A BARC material(204) is coated on a substrate(202) deposited on a wafer(200). A photoresist layer(206) is formed on the coated BARC material. An exposure process is performed to expose the photoresist to light. The first development process is performed to eliminate a part of the photoresist layer so that a photoresist layer pattern is formed. A top coating material(208) is deposited on the photoresist layer pattern. A bake process is performed to cause a chemical change between the upper coating material and the BARC material. The second development process is performed to remove the BARC material, and the substrate is etched.
Patent KR-20030071490-A (KR)
Title: 디스크 장치
IPC: G11B21/10
Filed: 2003-02-07
Abstract: 고주파수 회전 동기 진동 성분은 인접 트랙 사이에서의 상관이 작기 때문에, 이 회전 동기 진동 성분을 추종함으로써, 최악의 경우 미리 기록되어 있는 데이터를 파괴할 가능성이 있다.  그래서 추종 제어 루프 내에, 저주파 동기 회전 진동 성분을 추종하는 추종형 반복 제어부와, 고주파 회전 동기 진동 성분을 캔슬하는 비추종형 반복 제어부를 설치하여, 불필요하게 고주파의 회전 동기 진동을 추종하지 않도록 한다.
Patent KR-20040073096-A (KR)
Inventor: CHEN YU LIN
IPC: B25B27/06
Filed: 2003-02-13
Abstract: PURPOSE: A large clamping device for removing a bearing is provided to minimize the damage on a bearing when removing the bearing by making the force between the bearing and a clamping device uniform and to conveniently control the area defined by base blocks. CONSTITUTION: A clamping device(10) comprises three base blocks(11) and three connecting rods(12). Each base block is bent upwardly, and the inner edge is recessed. Thus, a thin upwardly bent face(111) is formed in the base block. Connecting holes are formed in both sides of the base block. The connecting rod is accurately penetrated through the connecting hole. The center of the connecting rod is accurately fitted in the connecting hole. The three blocks are assembled to form the round clamping device.
Patent KR-20040074787-A (KR)
Inventor: KWON GI CHANG
IPC: G06F17/40
Filed: 2003-02-19
Abstract: PURPOSE: A method for automatically registering life information data, and a recording medium and a data structure for the same are provided to offer the sales article information to customers fast by easily uploading the data of a life information newspaper program to a web server. CONSTITUTION: The life information data of a life information newspaper is inputted. The inputted data is automatically classified/stored in a database of the web server. The inputted data is automatically classified in a web site formed to easily search a web page of the web server. The automatically classified life information data is automatically registered.
Patent KR-20040076676-A (KR)
Inventor: YOUN TAE MOON
IPC: A47J31/00
Filed: 2003-02-26
Abstract: PURPOSE: A vacuum circulation type herb-medicine preparing device is provided to improve extraction efficiency by collecting herb-medicine steam with a vacuum pump. CONSTITUTION: A vacuum circulation type herb-medicine preparing device is composed of a bowl(10), a first cooling unit(20) for collecting herb-medicine steam, a distilled water tank(30) for recovering the herb-medicine, a vacuum pump(40), a water tank(52) for supplying cooling water to the first cooling unit, a second cooling unit(84) for cooling the heated cooling water, and a circulation pump(86) for supplying cooling water to the first cooling unit.
Patent KR-20040079452-A (KR)
Inventor: LEE SEUNG GU
Filed: 2003-03-07
Abstract: PURPOSE: A system and a method for operating a point lottery ticket are provided to increase the sales of a point lottery ticket member shop and effectively advertise the member shop to customers through the point lottery ticket. CONSTITUTION: A customer connector(710) receives a prize money payment request from a winner buying the point lottery ticket at the member shop. A lottery ticket information storing part(720) stores lottery ticket information. An operation controller(730) confirms drawing particulars by using the lottery ticket information in response to the prize money payment request and pays the prize money to the winner depending on a confirmation result. A shopping mall server(740) includes a goods information storing part(741) and a settlement part(742).
Patent KR-20030025957-A (KR)
Inventor: KIM SU DONG
IPC: B09B5/00
Filed: 2003-03-10
Abstract: PURPOSE: A method and an apparatus for automatically treating garbage are provided to discharge purified condensate water and odorless clean air by crushing garbage, drying the crushed garbage, cooling steam containing malodor generated during drying, and purifying condensate water and malodorous gases. CONSTITUTION: The apparatus for automatically treating garbage comprises a cover(700) covering the outer part of the apparatus; an automatic operating part formed at one side of the upper central part of the cover(700) and equipped with button and alarm; an injection port(1) formed at the upper central part of the cover(700); an injection part(20) formed at the lower part of the injection port(1); a crushing part formed at the lower part of the injection part(20); a circular disc shaped drying part(5) formed at one side of the crushing part; a collecting housing(12) formed at the lower part of the drying part(5); a hood(6) for covering the outer part of the drying part(5) and collecting vapor phase gas exhausted from the drying part(5) during drying; a cooling part(8) connected to the upper part of the hood(6) by a pipe to cool vapor sucked from the hood(6) by a vapor suction fan(7); a purifier(9) that is connected to the lower part of the cooling part(8) and an ozonizer and purifies condensate water and malodorous gases; third purification column for finally purifying the condensate water and malodorous gases in the purifier(9); and condensate water outlet(702) and gas outlet for discharging purified liquid and gas.
Patent KR-20040080793-A (KR)
Inventor: LEE CHEONG
IPC: H01L29/786
Filed: 2003-03-13
Abstract: PURPOSE: A TFT array panel and a fabricating method thereof are provided to improve an operating speed by forming a semiconductor layer with polycrystalline silicon. CONSTITUTION: A gate line(121) is formed on an insulating substrate(110). A gate electrode(123) is connected to the gate line. A gate insulating layer(140) is formed on the gate line and the gate electrode. A semiconductor layer(154) is formed on the gate insulating layer. A resistant contact region(163) of a source part and a resistant contact region(165) of a drain part are formed on the semiconductor layer. A data line is formed on the semiconductor layer. A source electrode is partially overlapped on the resistant contact region of the source part. A drain electrode(175) is partially overlapped on the resistant contact region of the drain part. A protective layer is formed on the data line. A pixel electrode(190) is formed on the protective layer.
Patent KR-20040080846-A (KR)
Inventor: CHO SI HAENG
IPC: G06F11/30
Filed: 2003-03-14
Abstract: PURPOSE: A method for detecting a malicious behavior pattern considering a control flow and a data flow is provided to improve an accuracy of the malicious behavior detection by excluding an affirmative error and lowering a negative error generated from the variable name comparison. CONSTITUTION: A control flow graph is generated by reading a given script(S610). The duplication/constant propagation is performed through a data flow analysis on the generated control flow graph(S620). The malicious behavior pattern detection is performed(S630). When it is judged that two token values existing in two sentences are identical with each other, an algorithm using the obtained control flow graph is used.
Patent KR-20030077389-A (KR)
Inventor: LEE JONG HWA
IPC: H04Q11/00
Filed: 2003-03-21
Abstract: PURPOSE: A WDM(Wavelength Division Multiplex) system using a non-modulation optical source and a method therefor are provided to improve the efficiency of a system by loading information on the non-modulation optical source and by generating a WDM signal. CONSTITUTION: A non-modulation optical source unit(10) outputs a plurality of non-modulation wavelengths on which information is not loaded. An add/drop unit(210) drops a random wavelength to load information among the wavelengths outputted from the non-modulation optical source unit(10), loads information on the random wavelength, converts the wavelength into a WDM signal, adds the WDM signal to the wavelengths, and transmits the wavelengths through an optical fiber. An attenuating unit(211) corrects an optical power of the wavelength when the optical power attenuation of the wavelength is generated in the add/drop unit(210). A microprocessor unit(280) monitors that the add/drop unit(210) converts the wavelength into the WDM signal. If the optical power attenuation of the wavelength is generated, the microprocessor unit(280) controls the attenuating unit(211), for correcting the optical power of the wavelength. A performance monitoring unit(270) allows the microprocessor unit(280) to monitor the signal conversion performed in the add/drop unit(210).